Furnace-wall construction



April. lf2, 1927.

R. s. RILEY FURNACE WALL CONSTRUCTION Filed sept. 9. 1921 n u l Patented Apr. 12, 1927.

UNITED STATES y 1,624,009 PATENT OFFICE.

ROBERT-SANFORD RILEY, OF WORCESTER, MASSCHUSETTS, ASSIGNOR TO RILEY STOKER CORPORATION, 0F WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

FURNACE-WALL CONSTRUCTION.

rApplication filed septemberr s, 1921. 4serial No. 499,508.

This invention' relates to a furnace wall construction, more particularly adapted to furnaces equipped with underfeed strokers and operated under forced draft.

Tt has been found under pressure to such furnaces, not only to the tuyre blocks between and at the sides of the retorts, but also to the furnace side walls adjacent the outer retorts.

lt is the general objectA of my invention to` provide a ventilated furnace side-wall of improved construction, in which the parts are easily assembled, and in which worn parts may be easily and cheaply removed and replaced.

It is a further object to provide for even distribution of the air through different parts of the wall. My invention further relates to arrangements and combination of parts, which will be hereinafter described and more particularly pointed out in the appended claims. Y

A preferred form of my inventlon is shown in the drawings, in which Fig. 1 is a front elevation of a portion of a furnace side-wall constructed in accordance with my invention;

Fig. 2 is a sectional elevation thereof, taken along the linel 2-2 in Fig. 1;

Fig. 3 is a detail front view of a portion of the back frame;

Fig. 4 is a detail sectional plan view taken along the line 4-4 in Fig. 2;

Fig. 5 is a partial plan view of one of the side-wall plates, taken in the direction of the arrow 5 in Fig. 6; and

Fig. 6 is a sectional elevation of the plate, taken along the line 6-6 in Fig. 5. l

Referring to the drawings, I have shown a ortion of a side-,wall 10 and parts of certain retorts of an underfeed stolrer, these parts comprising a retort side plate 11, rows of tuyre plates 12 arranged in stepped relation between the retorts, and several o the side tuyre blocks 12. At the rear of the retort there is also shown a. portion of the usual dump-plate 13.

In the-preferred construction, recesses 14 and 15 are formed in the side-wall 10 and a back frame 16 is mounted in the recess 14, this frame being preferably formed as a series of separate sections, extendin along the incline towards the front of the urnace.

Each back frame section 16 is provided desirable to supply air with lugs or brackets 17 (Fig. 2) fitting over U The frame sections are also provided with a plurality of outwardly extending lugs 22, preferably arranged in pairs in staggered relation, as clearly shown in'Fig. 3, and having aligned openings 22a therein.

b Side wall plates 23 (Fig. 2) are supported 'I Y the back-frame sections 16 and are each provided lwith end flanges 24 (Fig. 4) and with longitudinal lianges or lugs 25, each having two openings 26 therein. The plates 23 are also preferably provided with a series of holes or perforations 28 through which air is admitted to the furnace.

The method of assembling the parts is clearly shown in Figs. 2 and 4, headed fastening studs 30 being inserted throughv the openings 22a in the lugs 22 and through the corresponding openings 26 in the flanges 25. The lugs 22 are arranged in staggered relation to permit easy insertion and removal of the headed fastening studs for adjacent plates. The

headed studs 30. are usually merely dropped A into place through the openings in the associated lugs or flanges and may be easily driven out whenever it is necessary tov re- IJlCG WORD side-wall plates.

Reference to Fig. 2 will also show that the assembled plates 23 are not in close contact with each other, but that slots or air-openings 32 are left between adjacent plates to admit additional air to the furnace.

Air openings 33 are formed in the end walls 34 of the back-frame sections 16 and the end anges 24 of the plates 23 are cut away at their rear edges so that they do vnot f obstruct the openings 33. Air is supplied tion, underfeed reto-rts, tuyere plates therebctween, side 'tuyere blocks for said furnace, a side Wall, a frame supported thereby, wall plates detachably secured to said frame above the plane of said side tuyre blocks,

said frame and plates defining an air passage, and means to supply air through said passage to said furnace through and around said. plates. v

2. In an underfeedfurnace, in com-bination, underfeed retorts, tuyere plates there between, side tuyre. blocks for said furnace, a furnace side Wall having a recess, a frame formed in sections secured to said wall in said recess, a series of Wall lates secured to said frame sections above t e plane of said side tuyre blocks, saidframe and plates defining an air passage,'and means to admit air to each section between said frame and said plate, said sections also having connected openings permitting the passage of air between adjacent sections.

3. In a furnace, in combination, a Wall, a frame mounted on said Wall and having a plurality of lugs vertically spaced aparton the outer face thereof, a series of Wall plates arranged one above the other and-having additional lugs rearwardly projecting therefrom, fastening devices effective to connect f associated lugs together, and means to supply air behind said'plates.

bers-positioned in sai-d openings to detach,q

ably secure said plates in position.

In a furnace in combination, a wall, a frame nloimted on said wall and having a plurality of lugs vertical-ly spaced apart and in staggered relation on the outer face thcreof, a series of Wall plates arranged one above the other and havmg additional lugs rearwardly projecting therefrom and arranged in corresponding staggered relation to the arrangement of the lugs on the frame, fastening devices effective to connect assembled lugs together and means for supplying air behind said plates.

6. Inga furnace, a side Wall, underfeed rctorts, tuyre plates therebetween, tuyre blocks at the side of said furnace, a plurality of fiat perforated air admitting Wall plates mounted on said Wall above the plane of said side tuyre blocks and forming the outer Wall of an air passage, and means to supply air behind said plates, said forated and spaced apart.

In testimony whereof I have hereunto affixed my signature.

ROBERT SANFORD RILEY.

plates being per- 

